Wandering Sickness: If the creature is lowered to 0 hit points or lower, the plague inside it jumps to the character that slayed the creature. That creature is now affected by the travelling plague, which like mummy rot, cannot be fended off by successful saves. It also cannot be gotten rid of by magical healing less than a wish or miracle. The disease can, however, be dispelled by using a damaging spell on the infected character. The disease has a save DC of 17, damage 1d6 Dex and a -2 penalty on saving throws other than that of the plague, and a chance to attack the nearest living creature at a random time the next day, as well as an incubation period of one day. The carrier is treated as though always affected by the disease.

Plague Jump: The parasite inside of the creature may as a free action, jump to another living thing as the dimension door spell. The original creature is immediately cured and the new creature is immediately infected.